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EP 3 127 323 A1

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(43) Date of publication: 08.02.2017 Bulletin 2017/06 (21) Application number: 15773672.9 (22) Date of filing: 18.03.2015

(51) International Patent Classification (IPC):  H04N 5/232(2006.01) G06T 7/00(2017.01) G02B 7/28(2006.01) G03B 7/08(2014.01) G06F 3/01(2006.01) (86) International application number: PCT/FI2015/050178 (87) International publication number: WO 2015/150622 (08.10.2015 Gazette 2015/40)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA (30) Priority: 31.03.2014 CN 201410135688 (71) Applicant: Nokia Technologies Oy 02610 Espoo (FI)	(72) Inventors: CHU, Weili Beijing 100176 (CN) GUO, Fengyang Beijing 100176 (CN) (74) Representative: Nokia Corporation  Intellectual Property Department Karakaari 7 02610 Espoo 02610 Espoo (FI)